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144478413 = 3219844903
BaseRepresentation
bin10001001110010…
…01000011001101
3101001212021010100
420213021003031
5243441302123
622200401313
73403021602
oct1047110315
9331767110
10144478413
1174610852
1240476239
1323c178b1
141528c6a9
15ca3d643
hex89c90cd

144478413 has 12 divisors (see below), whose sum is σ = 219675040. Its totient is φ = 91249416.

The previous prime is 144478403. The next prime is 144478429. The reversal of 144478413 is 314874441.

It is a happy number.

144478413 is a `hidden beast` number, since 144 + 478 + 41 + 3 = 666.

It is a de Polignac number, because none of the positive numbers 2k-144478413 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144478403) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 422281 + ... + 422622.

Almost surely, 2144478413 is an apocalyptic number.

It is an amenable number.

144478413 is a deficient number, since it is larger than the sum of its proper divisors (75196627).

144478413 is a wasteful number, since it uses less digits than its factorization.

144478413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 844928 (or 844925 counting only the distinct ones).

The product of its digits is 43008, while the sum is 36.

The square root of 144478413 is about 12019.9173458057. The cubic root of 144478413 is about 524.7280986604.

The spelling of 144478413 in words is "one hundred forty-four million, four hundred seventy-eight thousand, four hundred thirteen".

Divisors: 1 3 9 19 57 171 844903 2534709 7604127 16053157 48159471 144478413